Questions tagged [labview]

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Help replacing a physical joystick for motor control with a LabView program

I'd like to start by acknowledging the similarity of this question to this one, but I really need a more basic, step-by-step explanation. I am trying to help a student in my lab design a program to ...
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1answer
40 views

I need to design a second order active filter low-pass Rauch structure of Bessel. Design data: f-cut = 15 Hz; C1 = 50 pF. More info in img [closed]

How can I find the values requierd? I tried using the formulas my teacher gave me but c2 is 0 when i use them. Am i doing something wrong? should i use other formulas? I tried to ask the teacher but ...
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1answer
41 views

Why am I not receiving a 60 MHz signal from CLKOUT in sync.FIFO mode on the FT2232H?

I tried to set sync.FIFO mode on FT2232H. According to paragraph 4 (pg.10) of AN_130 (FT2232H Used in an FT245 Style Synchronous FIFO Mode) I expected a 60MHz signal at pin No.32 (CLKOUT) after set ...
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28 views

Labview power and frequency sweep

I am kind of new to Labview. I am trying to control a Keysight N5173B RF signal generator to do an amplitude and frequency sweep. I made some block diagrams, but I could not get a proper result. I ...
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1answer
57 views

Labview cannot send command error

i'm trying to control keysight instrument. And i constructed a block diagram in Labview. It works at first, but at second time it won't even respond to *IDN? Command. Visa read block gives timeout ...
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27 views

Suggest mini project for feedback and controls that can be simulated in LabView

im an electrical engineering student and Im having problems on my feedback and control subject. all of my proposals for project are being denied. can you please suggest electronics that can be ...
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40 views

Oscilloscope on NI Elvis II+ board is losing signal when used as VI

I'm trying to process signals using built-in oscilloscope of NI Elvis II+ and LabVIEW. Signals are coming from generator to oscilloscope input of the board. I'm capturing signals using "NI ELVISmx ...
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0answers
30 views

Electrical device to keep circuit open once an open is detected

I'm working on a laboratory setup that has eight electric motors running at high speed. The motors are enabled by sending a 5 V enable signal from a NI DAQ setup/LabVIEW to the motor amplifiers. ...
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0answers
42 views

Calculate roots for second order equation in labview

I did this in labview but it does not work for complex root how i can make it for real and complex roots
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1answer
92 views

Sawtooth to Straight line in Simulink

There is a component in LabVIEW called as "Inverse Modulus". It is used to eliminate the discontinuous jump that would occur when the DAC encoder of the hardware reaches the limits of this range. ...
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0answers
105 views

16 bit VISA Write in LABView

I am trying to communicate with a LIN sensor device via a PC COM port (I built a board that converts USB to UART and then UART to LIN). The board works and I wrote a simple Matlab script to grab data ...
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0answers
314 views

Measuring current using ACS 712 with NI DAQ 9215

I am trying to measure current from Ignition coil(12V, 4.5A). i used arduino to measure current. And it worked good. And i connected the ACS712 signal pin to NI DAQ 9215. At zero current the output ...
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1answer
116 views

Holding signal true for x seconds in LabView

I'm trying to create an automatic startup override system whereby when an ESD override button is clicked, a signal will be held true for 10 seconds overriding my ESD interlocks. This seems like there ...
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1answer
127 views

In a Generator, why when the Exciter voltage increases the Generator Voltage decreases?

I have a project where I have to build an electrical model of a generator with constant torque at 1500 RPM and simulate it in LabView. I have a manual that describes some measurements that were made ...
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1answer
175 views

Pressure transducer being read using Labview

I understand this is not a typical question for this forum, and that NI Labview forum would be better (I posted there too), but I am hoping that someone who is proficient in Labview will see this. I ...
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1answer
431 views

How can I transmit a TTL signal to a computer?

I am designing a data acquisition system including a sensor that outputs a TTL pulse signal (3 wires: power supply, common, and signal). I am trying to determine how to send this signal to a program ...
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2answers
494 views

how to bumplessly switch between two control signals?

I have a Labview program which sends 4-20ma current signal through a ni usb device to control the speed of a motor by controlling a sew eurodrive MOVIDRIVE ® MDX60B / 61B. Here is the data sheet of ...
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1answer
231 views

Can change number of data bits in NI LabVIEW's VISA serial?

I need to send 16 bits of data through serial UART to LabVIEW. I have 16bits of data frames with 1 start bit, 1 stop bit, and 1 parity bit. Is it possible to change the number of data bits in VISA ...
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1answer
290 views

fire detection system with lm358 using arduino and labview.I want help regarding if my circuit is correct or not?VI

I'm a beginner working on this system (Link). I build the hardware similiar to the link and I did a software implementation on Lab view as well, but only the buzzer starts when temperature is ...
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1answer
148 views

How do I obtain readings using an AD8302?

I need to use an AD 8302 Gain and Phase detector along with a SynthHD frequency generator to design a Vector Network Analyzer. Before I get to that I wanted to try and obtain readings on my PC. There ...
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1answer
275 views

LabView drivers for Keithley 6487. where to find documentation?

I have to set up a program for measuring the IV characteristics of some components using LabView. At the time of writing I'm studying the basics of the G language (LabView programming language) for ...
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1answer
222 views

FFT in LabView using DAQ

Familiar with the FFT and LabView. Can I use LabView to compute and display the FFT of an analog signal in real-time rather than computing it from a data array?